The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 30, 2008
Filed:
Oct. 15, 2007
Alexander Beltran Bernardo, San Antonio, TX (US);
Gary Lane Burkhardt, Adkins, TX (US);
Arthur Edwin Nicholls, Helotes, TX (US);
Walter Mac Gray, San Antonio, TX (US);
Alexander Beltran Bernardo, San Antonio, TX (US);
Gary Lane Burkhardt, Adkins, TX (US);
Arthur Edwin Nicholls, Helotes, TX (US);
Walter Mac Gray, San Antonio, TX (US);
Southwest Research Institute, San Antonion, TX (US);
Abstract
A method and system for measuring constitutive properties, such as radial strain, on a specimen of power or other granular material while the specimen is subject to compressive axial and radial loading. The specimen fills a pliable sleeve that has a conductive band around its circumference. An eddy current coil is placed around the sleeve, and used to provide a response signal that indicates the diameter of the sleeve, which in turn indicates radial strain.